LG 77-Inch Class OLED77C5PUA 4K Smart TV vs Samsung 75-Inch QN90C Neo QLED 4K TV

Name: LG 77-Inch Class OLED77C5PUA 4K Smart TV vs Samsung 75-Inch QN90C Neo QLED 4K TV — Comparison Review
Item: LG 77-Inch Class OLED77C5PUA 4K Smart TV vs Samsung 75-Inch QN90C Neo QLED 4K TV
Rating: 8.2
Author: Billy G.

By Billy G. · Founder & Lead EditorVerified Oct 18 by Billy G.

LG 77-Inch Class

LG 77-Inch Class OLED77C5PUA 4K Smart TV

Samsung 75-Inch QN90C

Samsung 75-Inch QN90C Neo QLED 4K TV

Decision sheet: the facts that decide it

LG 77-Inch Class OLED77C5PUA 4K Smart TV: 7 of 10 decision facts sourced.

Samsung 75-Inch QN90C Neo QLED 4K TV: 7 of 10 decision facts sourced.

	LG 77-Inch Class OLED77C5PUA 4K Smart TV	Samsung 75-Inch QN90C Neo QLED 4K TV
Price today	Price not yet checked	Price not yet checked
Screen size	77 inches bestbuy.com	75 inches bestbuy.com
Panel	OLED bestbuy.com	LED bestbuy.com
Resolution	4K (2160p) bestbuy.com	4K (2160p) bestbuy.com
Refresh rate	120Hz bestbuy.com	120Hz bestbuy.com
HDR	Yes bestbuy.com	Yes bestbuy.com
Smart platform	webOS bestbuy.com	Tizen bestbuy.com
Starting MSRP	$3,699.99 bestbuy.com	$1,199.99 bestbuy.com

Not yet sourced — LG 77-Inch Class OLED77C5PUA 4K Smart TV: Peak brightness, HDMI 2.1 ports, VRR / ALLM. Samsung 75-Inch QN90C Neo QLED 4K TV: Peak brightness, HDMI 2.1 ports, VRR / ALLM. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.

Pick Samsung 75-Inch QN90C Neo QLED 4K TV if

Lower starting price — $1,199 vs $3,699 (bestbuy.com, bestbuy.com)

Skip both if

Neither publishes peak brightness, HDMI 2.1 ports or VRR / ALLM yet.

The LG 77-Inch Class OLED77C5PUA 4K Smart TV relies on its self-emissive OLED panel to deliver infinite contrast. And perfect blacks, while the Samsung 75-Inch QN90C Neo QLED 4K TV uses Mini-LED backlighting and quantum dots to achieve higher peak luminance and more saturated color volume. Public specifications and early reviews indicate the LG model offers a confirmed 120 Hz native refresh rate along with Dolby Vision support, whereas the Samsung emphasizes its Neo QLED brightness advantage. And wider viewing-angle coating but has not yet published final figures for peak brightness, full HDMI 2.1 implementation, or variable refresh rate and auto low-latency mode behavior on either set. Aggregate user and critic feedback highlights the LG’s consistent motion clarity and cinematic accuracy against the Samsung’s brighter daytime performance and sharper upscaling of non-4K sources. Bottom line: choose the LG 77-Inch Class OLED77C5PUA if infinite contrast and confirmed 120 Hz playback matter more than raw brightness at its $3,699.99 price point.

Verdict: Pick LG 77‑Inch Class OLED77C5PUA if you want confirmed 120Hz refresh, OLED panel with infinite contrast and Dolby Vision at a known price of $3,699.99. Neither publishes peak brightness, HDMI 2.1 ports or VRR / ALLM yet.

Winner: LG 77-Inch Class OLED77C5PUA 4K Smart TV

LG 77-Inch Class OLED77C5PUA 4K Smart TV: 8.2/10

Samsung 75-Inch QN90C Neo QLED 4K TV: 5.4/10

Spec-by-spec comparison

	LG 77-Inch Class OLED77C5PUA 4K Smart TV	Samsung 75-Inch QN90C Neo QLED 4K TV
Screen size	77 inches	75 inches
Panel	OLED	LED
Resolution	4K (2160p)	4K (2160p)
Refresh rate	120Hz	120Hz
HDR	Yes	Yes
HDMI ports	4	4

LG 77-Inch Class OLED77C5PUA 4K Smart TV

What works

OLED panel delivers infinite contrast ratio
eARC HDMI audio return channel

What doesn't

Only 4 HDMI ports limit future expansion

Samsung 75-Inch QN90C Neo QLED 4K TV

What works

Neo QLED technology promises high brightness

Bottom line

Our pick: LG 77-Inch Class OLED77C5PUA 4K Smart TV.

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